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package phenax.utils
import java.io.File
import kotlin.properties.ReadOnlyProperty
import org.openrndr.ApplicationBuilder
import org.openrndr.Program
import org.openrndr.draw.*
import org.openrndr.extra.filewatcher.watchingFile
import org.openrndr.extra.olive.oliveProgram as oliveProgramOriginal
fun Int.seconds(): Int = this * 1000
fun Int.minutes(): Int = this.seconds() * 60
fun recordDuration(millis: Int) {
System.setProperty("phenax.record.frameCount", (60 * millis / 1000).toInt().toString())
}
fun recordDuration(): Int? = System.getProperty("phenax.record.frameCount")?.toIntOrNull()
val recordingEnabled: Boolean by lazy { System.getenv("RECORD") != null }
// fun classDir(): String =
// "src/main/kotlin/${stackRootClassName(sanitize =
// true).split(".").dropLast(1).joinToString("/")}";
// fun localComputeShader(name: String): ComputeShader =
// ComputeShader.fromCode(File("src/main/resources/shaders/${name}.cs").readText(), name)
// Have to keep the same name (oliveProgram) to get update on save to work
fun ApplicationBuilder.oliveProgram(init: Program.() -> Unit) {
if (recordingEnabled) {
program(init)
} else {
// TODO: Make watching shader files work
oliveProgramOriginal(init = init)
}
}
fun preprocessShader(shaderCode: String): String {
val pattern = Regex("#include\\s+<([A-Za-z0-9-_/.]+)>")
val includes = pattern.findAll(shaderCode)
var parts: MutableList<String> = mutableListOf()
var lastIndex = 0
includes.forEach {
parts.add(shaderCode.slice(lastIndex..(it.range.first - 1)))
lastIndex = it.range.last + 1
val modulePath = it.groupValues[1]
val moduleContents = File("src/main/resources/shaders/modules/${modulePath}.glsl").readText()
parts.add("/* Module ${modulePath} */")
parts.add(moduleContents)
parts.add("/* End module ${modulePath} */")
}
parts.add(shaderCode.slice(lastIndex..(shaderCode.length - 1)))
return parts.joinToString(separator = "\n")
}
val defaultShaderCode: String = ""
fun Program.liveComputeShader(name: String): ReadOnlyProperty<Any?, ComputeShader> {
val shaderCode by
watchingFile(File("src/main/resources/shaders/${name}.glsl")) { file ->
println("change")
preprocessShader(file.readText().toString())
}
var cs: ComputeShader = ComputeShader.fromCode(shaderCode, name)
if (!recordingEnabled) {
var lastCompiledCode: String = shaderCode
program.extend {
if (shaderCode != lastCompiledCode) {
cs.destroy()
try {
cs = ComputeShader.fromCode(shaderCode, name)
} catch (e: Exception) {
println("Shader compile failed: ${e.message}")
// Restore old shader if new code has error or default shader
try {
cs = ComputeShader.fromCode(lastCompiledCode, name)
} catch (e: Exception) {
println("Falling back to default shader")
cs = ComputeShader.fromCode(defaultShaderCode, name)
}
}
lastCompiledCode = shaderCode
}
}
}
return ReadOnlyProperty { _, _ -> cs }
}
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